Ariana Grande adores posting Instagram pics of all the closest people in her life, like her parents and boyfriend Jai Brooks—but no one more than her adoring grandfather. She just announced on Twitter that after weeks of illness, he has sadly passed away.

“[T]hank you for your continuous love & light over the past few weeks… we did lose my favorite person to ever exist yesterday, my grandpa :'(” she tweeted today. “[I]f only y’all knew how amazing he was.. my <3 hurts so much. It’s beyond broken :'( but I got to hold his hand and watch him find his peace,” she continued.

Three weeks ago, Ariana posted pics of herself snuggled in a hospital bed next to her grandfather. His goofy grin easily showed his resemblance to Ariana’s brother Frankie. “this is the hardest thing imaginable but I’m so grateful that I got to spend this time with him & my family. taking care of him & loving him,” Ariana wrote. Our condolences, Ariana.